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    • 1. 发明授权
    • Apparatus and method for coding moving pictures
    • 用于编码运动图像的装置和方法
    • US08761264B2
    • 2014-06-24
    • US11497288
    • 2006-08-02
    • Satoshi ShimadaAkira NakagawaHidetoshi MatsumuraYasuhiro WatanabeAkihiro Yamori
    • Satoshi ShimadaAkira NakagawaHidetoshi MatsumuraYasuhiro WatanabeAkihiro Yamori
    • H04N7/12
    • H04N19/136H04N19/103H04N19/122H04N19/129H04N19/132
    • The apparatus includes: orthogonal transforming means for orthogonally transforming an input video signal for each element block, quantizing means for quantizing each obtained transformation coefficient using a quantization parameter; coding means for coding the quantization parameter; decoded picture generating means for generating a reference picture signal for a motion compensation prediction from the quantized results of the quantizing means; filtering means for filtering the obtained reference picture signal at a strength corresponding to the quantization parameter when a non-zero effective transformation coefficient is present with respect to the element block; and controlling means for controlling at least anyone of transformation coefficients to be not zero, when all of the transformation coefficients are zero. This allows, even when all of the quantized results of the transformation coefficients of the element blocks are zero, coding of quantization parameter of current element block and control of filtering strength.
    • 该装置包括:正交变换装置,用于对每个元素块的输入视频信号进行正交变换;量化装置,用于使用量化参数量化每个获得的变换系数; 用于编码量化参数的编码装置; 解码图像生成装置,用于从量化装置的量化结果生成用于运动补偿预测的参考图像信号; 滤波装置,用于当相对于所述元素块存在非零有效变换系数时,以与所述量化参数对应的强度对所获得的参考图像信号进行滤波; 以及控制装置,用于当所有变换系数为零时,将变换系数中的至少任一个控制为不为零。 这允许即使当元素块的变换系数的所有量化结果为零时,当前元素块的量化参数的编码和滤波强度的控制。
    • 3. 发明申请
    • Apparatus and method for coding moving pictures
    • 用于编码运动图像的装置和方法
    • US20070217508A1
    • 2007-09-20
    • US11497288
    • 2006-08-02
    • Satoshi ShimadaAkira NakagawaHidetoshi MatsumuraYasuhiro WatanabeAkihiro Yamori
    • Satoshi ShimadaAkira NakagawaHidetoshi MatsumuraYasuhiro WatanabeAkihiro Yamori
    • H04N11/04H04B1/66
    • H04N19/136H04N19/103H04N19/122H04N19/129H04N19/132
    • The apparatus includes: orthogonal transforming means for orthogonally transforming an input video signal for each element block, quantizing means for quantizing each obtained transformation coefficient using a quantization parameter; coding means for coding the quantization parameter; decoded picture generating means for generating a reference picture signal for a motion compensation prediction from the quantized results of the quantizing means; filtering means for filtering the obtained reference picture signal at a strength corresponding to the quantization parameter when a non-zero effective transformation coefficient is present with respect to the element block; and controlling means for controlling at least anyone of transformation coefficients to be not zero, when all of the transformation coefficients are zero. This allows, even when all of the quantized results of the transformation coefficients of the element blocks are zero, coding of quantization parameter of current element block and control of filtering strength.
    • 该装置包括:正交变换装置,用于对每个元素块的输入视频信号进行正交变换;量化装置,用于使用量化参数量化每个获得的变换系数; 用于编码量化参数的编码装置; 解码图像生成装置,用于从量化装置的量化结果生成用于运动补偿预测的参考图像信号; 滤波装置,用于当相对于所述元素块存在非零有效变换系数时,以与所述量化参数对应的强度对所获得的参考图像信号进行滤波; 以及控制装置,用于当所有变换系数为零时,将变换系数中的至少任一个控制为不为零。 这允许即使当元素块的变换系数的所有量化结果为零时,当前元素块的量化参数的编码和滤波强度的控制。